TV Repair: Common Faults and Solutions.
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Results: 87573
Results: 87573
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SAMSUNG | LN40B530P2M | Light bulbs are blinking as if in fear. | Poor contact, or dirty contact in the main board fixings. | Sand the grounding terminals on the main board and also on the panel can. | DANGRA ELTRÔNICA SÃO PAULO |
| PHILIPS | FWM416/78 | Shows disc reset fall when inserting the usb pen driver | Lack of reset on the CD due to lack of power | Causes capacitor 168 to short on the 8v line. After changing the capacitor, the 8v came back and the device rang normally | |
| SONY | KDL-40R485A | Turns on the image, turns off. restarts 3x and goes to standbay and the LED flashes 6x after the third time it turns off | Capacitor 39/50v | Replace smd aluminum electrolytic capacitor on the 39μF/50v main board, it is close to the 9500 position i.c, i.c that powers the leds... | MIGUELTV |
| LG | 42LB9RT EAX37617801 | The power supply does not double or the pfc does not work, it has the 5vts on stand by. if you switch the supply, the power supply for ics u101 and u600 does not appear | Photo normal pc130 optical coupler in test on the power supply board | Replace even though it appears to be good | @gepe |
| PHILIPS | 40PFL9605D ? | The TV turns on, the image appears and then it turns off, only the sound remains. | Guys, the cause is q702 and q703, these two transistors are responsible for the switching of the transformer that feeds the 185 volts to the LED bars, I replaced the two fets and everything was resolved. | Replace the two fets q702 and q703 that were leaking and everything is resolved, let's stop being selfish and help others. | <small>This email address is being protected from spambots. You need JavaScript enabled to view it.</small> |
| AOC | D26W831 | Turns on normally, after a certain time it turns off and the stand-by light goes out | The defect is in the stand-by circuit itself, more precisely in the power supply that contains the 5v line, this voltage is switched by the ci tny277pn, which heats up a lot! | Replace ci tny277pn, also check capacitors from this line, and it doesn't hurt to check the capacitors on the 12v and 24v lines! | Lucas |
| TOSHIBA | 48L5400 | Locking and turning off by itself; symptom appears to be led. | 5v protection acting | R828 5k1 mudar p/ 10k | RPS Tecnologia |
| ELSYS | 2.0 PRETO | AC outlet doesn't turn on | Replace of r104 and q100 | ERAL - RACHID | |
| LG | 50PN4500 | Doesn't work, just sby | Q604 - 5v switch | MARCELO BERNARDINO | |
| AOC | E39H12NS CDB1NNB 715G9047-COC- 000- 004N | Q9101 power supply burnout | Shorted ceramic capacitor 101pf/1kv at the terminals of the fet q9101 (k13a65u) | Changing the ceramic, can 221 pf/2kv, of the fet, (I put a p10nm60, it is not the right one, because my k13 are fake. r9101 0.22r 2w, r9104 22r 1/8w, r9106 22r 1/8w, r9109 1k 1/8w, u9101 ld7531 (I believe the ld7535, ld7550 can be applied) | Giovani pires bitencourt |
| PHILCO | PH42M61DSGW | Turns on the logo appears and turns off | Problems with the update. After carrying out the update procedure, the problem was resolved | Paulo Russo | |
| SOM PHILIPS | FWM210 | Display does not show characters | After evaluating the board, I noticed that tsound was no 10 volts (I put a 560 omhs resistor on the r524 that tsound was no board and the sound started working again | eletronica max es | |
| SEMP | TV2934 | No characters normal image | Open ga01 inductor | Replace the ga01 inductor | lucas venzke |
| LG | 21FU4RL | Cushion effect or cup effect | Following pin 8 (size) of the tda8145, a leaky diode 1n4148 was discovered. | D411 replacement (1n4148) | Carlos Alberto (Eletrônica Baturité) |
| AOC | LE50S5970 | TV inoperative, no stand-by lights up. | D9311 shorted to the power supply. | Substituted and scored for Corinthians!!!! | DIGITAL SYSTEM |
| SEMP | TV2934 SK91 | Tv-works with red screen with retrace lines | Q505 | Replace q505--bf422 | EDSONKALAZAN |
| SEMP | TV 2122 U19 | When very cold it turns on normally, after a little it turns off, the second one dies | Weak supply regulator | Str w5453a | Dlima |
| DUOSAT | PRODIGY NANO | Boot perr , receiver does not start. stays in loop giving message boot / perr | Defective sc41cr security ci. replace with another one (any receiver will do). in other cases it is cold soldering on the eprom, or on the processor. give heat to resolder them. | Defective sc41cr security ci. replace with another one (any receiver will do). in other cases it is cold soldering on the eprom, or on the processor. give heat to resolder them. | deleon |
| VISIONTEC | N5366S | Board shorted flashing red LED (does not start) | Component u19 (en3aa) shorted (13/18v doubler). just remove it and replace it for another one. the receiver will turn on, but tsound will be no satellite signal. | Ci smd kit 10x en2xx en3xx en4xx en5xx en6xx enxxx sot23-6 no mercadolivre | Visiontec Claro Livre N5366S |
| SAMSUNG | UN32J4000AG | Does not turn on the backlight, LEDs (back light). however, turning on and acting channels and volume. | Defect on the main board. in the LED sector. | Broken track in the CI BD9397EFV power line (pin 1 VCC) due to touching the housing. rupture at the point that connects one side of the plate to the other. | R-Tec |